Sociodemographic Disparities in Tobacco Retailer Density in the United States, 2000 - 2017.

Mills SD, Kong AY, Reimold AE, Baggett CD, Wiesen CA, Golden SD.
Sociodemographic Disparities in Tobacco Retailer Density in the United States, 2000 - 2017.
Nicotine Tob Res. 2022 Jan 25:ntac020. doi: 10.1093/ntr/ntac020. Epub ahead of print. PMID: 35079790.

Introduction. Studies find differences in tobacco retailer density according to neighborhood sociodemographic characteristics, raising issues of social justice, but not all research is consistent. This study examined associations between tobacco retailer density and neighborhood sociodemographic characteristics in the United States (US) at four timepoints (2000, 2007, 2012, 2017) and investigated if associations remained stable over time.

Methods. Data on tobacco retailers came from the National Establishment Time-Series Database. Adjusted log-linear models examined the relationship between retailer density and census tract sociodemographic characteristics (% non-Hispanic Black [Black], % Hispanic, % vacant housing units, median household income), controlling for percentage of youth, urbanicity and US region. To examine whether the relationship between density and sociodemographic characteristics changed over time, additional models were estimated with interaction terms between each sociodemographic characteristic and year.

Results. Tobacco retailer density ranged from 1.22-1.44 retailers/1,000 persons from 2000 to 2017. There were significant, positive relationships between tobacco retailer density and the percentage of Black (standardized exp(b)=1.05 (95% CI: 1.04, 1.07) and Hispanic (standardized exp(b)=1.06 (95% CI: 1.05, 1.08) residents and the percentage of vacant housing units (standardized exp(b)=1.08 (95% CI: 1.07, 1.10) in a census tract. Retailer density was negatively associated with income (standardized exp(b)=0.84 (95% CI: 0.82, 0.86). From 2000 to 2017, the relationship between retailer density and income and vacant housing units became weaker.

Conclusions. Despite the weakening of some associations, there are sociodemographic disparities in tobacco retailer density from 2000 to 2017, which research has shown may contribute to inequities in smoking.

Implications. This study examines associations between tobacco retailer density and neighborhood sociodemographic characteristics in the United States at four time points from 2000 to 2017. Although some associations weakened, there are sociodemographic disparities in tobacco retailer density over the study period. Research suggests that sociodemographic disparities in retailer density may contribute to inequities in smoking. Findings from this study may help identify which communities should be prioritized for policy intervention and regulation.